| (19) |
 |
|
(11) |
EP 1 642 944 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
17.06.2009 Bulletin 2009/25 |
| (43) |
Date of publication A2: |
|
05.04.2006 Bulletin 2006/14 |
| (22) |
Date of filing: 21.04.1999 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
DE FR GB |
| (30) |
Priority: |
21.04.1998 GB 9808480
|
| (62) |
Application number of the earlier application in accordance with Art. 76 EPC: |
|
99918129.0 / 1090079 |
| (71) |
Applicant: Coates Brothers |
|
St Mary Cray
Orpington
Kent BR5 3PP (GB) |
|
| (72) |
Inventors: |
|
- Caiger, Nigel Antony
Wells
Somerset BA5 1BE (GB)
- Selman, Hartley David
Saltford
Bristol BS18 3JN (GB)
|
| (74) |
Representative: Humphreys, Ceris Anne et al |
|
Abel & Imray
20 Red Lion Street
London WC1R 4PQ
London WC1R 4PQ (GB) |
|
| |
|
| (54) |
Radiation-curable vehicle for hot melt ink jet inks and inks using the same |
(57) A vehicle for a hot melt ink-jet ink comprises at least 30 % by weight of a radiation
curable material and a thickener. The vehicle is a thixotropic paste at 20°C, preferably
also at 25°C and has viscosity of less than 25 centipoise, preferably 12 centipoise
at at least one temperature in the range of from 40°C to 130°C. Another vehicle for
a hot melt ink-jet ink comprises a radiation curable material. The curable material
is a paste or a solid at 20°C, preferably also at 25°C and has a viscosity of less
than 25 centipoise, preferably 12 centipoise at at least one temperature in the range
of from 40°C to 130°C.